CVE-2020-12119
Last modified
CVE-2020-12119 is a high-severity vulnerability rated 8.1/10 on the CVSS scale. Ledger Live before 2.7.0 does not handle Bitcoin's Replace-By-Fee (RBF). It increases the user's balance with the value of an unconfirmed transaction as soon as it is received (before the transaction is confirmed) and does not decrease the balance when it is canceled. EPSS estimates a 0.49% chance of exploitation in the next 30 days.
Description
Ledger Live before 2.7.0 does not handle Bitcoin's Replace-By-Fee (RBF). It increases the user's balance with the value of an unconfirmed transaction as soon as it is received (before the transaction is confirmed) and does not decrease the balance when it is canceled. As a result, users are exposed to basic double spending attacks, amplified double spending attacks, and DoS attacks without user consent.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Ledger | Ledger Live | < 2.7.0 |
References
- https://donjon.ledger.com/lsb/012/Patch, Vendor Advisory
- https://donjon.ledger.com/lsb/012/Patch, Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
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